Nozzle construction



May 6; 1930.

E; R. ZADEMACH NOZZLE CONSTRUCTION Filed July 27. 1927 InventorAttorhegi s Patented May 6, 1930 UNITED STATES ERICK .B. ZADEMTAG H, OFELIZABETH, NEW JERSEY nozzm consrn'oc'rron Application filed July 27,1927. Serial Ho. 208,799.

The present invention relates to nozzles and to means for adjustablymounting such nozzles in desired positions.

The invention is particularly adapted for use in fastening nozzles ontoa-ir chests, boxes, or conduits used with blowers, the interiors ofwhich are inaccessible, so that it is impossible to work inside and useordinary tools in tightening and clamping the nozzles in place.

An object of the present invention is to provide a clampingimeanswhereby'such removable parts may be readily fastened or clamped to asupporting element without the 1 necessit of obtaining access to therear or back si e of the same.

' A more particular object of the invention is to provide clamping meansof the nature I above referred to, wherein it is unneccessary 29 toperform any special work on the supporting late, other than to provide ahole of stan ard configuration. I

Other and further objects of the invention will appear as thedescription proceeds.

The accompanying drawings show, for purposes of illustration, one of themany possible embodiments in which the present invention may take form,it being understood that the drawings are illustrative of the invention,rather than limiting the same.

In these drawings: Figure 1 is a sectional view through a nozzle s owingfragments of an air chest or chamber and her of container 11, such, forexam le, as an air chest for use with a blower. e rear or back side ofthe plate 10, or interior of the chamber 11 is ordinarily inaccessible,or may, as contemplated by the present invention, be merely diflicult ofaccess.

The plate 10 forms a supportin element and is provided-with a convenienty shaped aperture 12, here shown as being circular. A second element tobe supported thereon is indicated in the form of a nozzle member 13,

Figure 2 is a'fragmentary view showing P which ma conveniently take theform of a casting. his nozzle member 13 has a round flange or baseportion 14 somewhat larger T than the hole 12 so as to overlie the frontface of the plate 10. The nozzle also has preferably a long slot likeopening 13, arranged to produce a jet at anoblique angle with respect tothe plate. The shape and direction of the nozzle opening may, of course,be varied in any way desired. The rear face 15 of the nozzle member 13is provided with rea'rwardly projecting lugs 16 and 17 which may bepassed through the hole 12 in the front plate 10. These lugs areadjacent holes 18 and 19 in the flange 14' of the nozzle member, andthese holes, instead of being ordinary cylindrical drillings or coredholes, are preferably made of special shape such as shown in thedrawings. As indicated, these holes are of a more orless conicalconfiguration but are not symmetrical with respect to the perpendicular.

These holes are provided for the purpose of receiving clamping means,which may be in the form of stud bolts 20 and 21, each of which carriesa nut as indicated at 22 and 23. The holes 18 and 19 are so shaped thatone can move a bolt, with nut attached, to the dot and dash lineposition indicated in the upper part of Figure 1 and can similarly movethe lower bolt to place it in a diagonal position. When the bolts arebrought to such position, it will be obvious that the nuts may e passedthrough the hole 12 in the front late 10. As soon, however, as one turnsthe head of the bolt to tighten the bolt, the corresponding nut willengage with the adjacent lug so that it cannot turn. Further tighteningof the bolts brings the parts to the position shown in full lines in thedrawing.

' It will be noted that the hole 12 may be a rou h unfinished hole, andthat the lugs 16 and 1 form a ready means of centering the nozzle memberin place. One can easily adjust the angular position of the nozzle tothedesired position so as to orient the 'et to .the desired angle and thenti hten up t '0 bolts. The bolts may be reversed to place the bolt-headinside, and in an case, the nuts, or the bolt-heads, will over 'e theinner inaccessible face of the plate 10 and will securely fasten theparts together. It will of course be obvious that the invention is notlimited to the use of two bolts as a greater number may be used wheredesired, and also that the invention may be applied in the mounting ofdevices in places where the holes in the supporting plate are of variousshapes.

The adaptability of the invention to use with circular holes in thechest or plate to which the nozzles are to be applied is, however, afeature of very substantial value. The circular holes can all be stampedby a single die with no other requirement than that they be correctlylocated. There is no need for orientation of the die in stamping nor forany preliminary calculation or patterning based on the angular-positionsin which the nozzles are finally to be secured, because the nozzlescan-be secured inany adjusted position required.

What I claim is:

1. In combination, a chest including a wall having a circular aperturetherein, a nozzle member having a flange fitted in sealing engagementwith the outer face of-the wall bordering the aperture, and having itsouter face positioned by such engagement in substantlal parallelism withthe rear wall surface bordering the aperture, lugs {carried by thenozzle member and extending rearwardly through the aperture, the nozzlemember having holesthrough the flange thereof adj acent the lugs, andclamping couples each including a .bolt passed through one of the holesand a nut threaded thereon at the opposite side of the flange'from thehead of the bolt, the facing'surfaces of the bolt head and the nut beingsubstantially parallel, each couple being tiltable in its hole to permitpassing the portions of the couples to the rear of the nozzle throughthe aperture in the plate, whereby such portions may be projectelithrough' the aperture and then behind the rear surface of the supportingplate, the

nozzle may be oriented, and the parts may be plane supporting wallhaving a circular aperture therein, a nozzle member having a'planeflange fitted in sealing engagement with the portion of the outer faceof the wall bordering the aperture, and having its outer surfacepositioned by such engagementin substantial parallelism with the rearwall surface bordering the aperture, the nozzle member having boltholesthrough' the flange thereof, and clamping couples each including abolt having its shank passed rearwardly through one of the holes and anut threaded on the shank at the rear of the flange, the facing surfacesof the bolt head and the nut being substantially parallel, each couplebeing tiltable in its hole to permit passing the nut through theaperture-in the plate, whereby the nut may bev projected through theaperture and then behind the rear surface of the supporting plate, 1

bordering the aperture, and having its outer face positioned by suchengagement in sub stantial parallelism with the rear surfaceof the platebordering the aperture, lugs carried by the nozzle member and extendingrearwardly through the aperture, the nozzle member having holes throughthe flange thereof adjacent the lugs, and clamping couples eachincluding a bolt passed through one of the holes and a nut threadedthereon, the facing surfaces of the bolt head and the nut beingsubstantially parallel, each hole through the flange being shaped topermit tilting of the clamping couple radially of the nut, and theassociated lug being of such scant height relative to the length of thebolt shank that the nut when positioned at the inner end of the bolt mayclear the associated lug and avoid interference with the tilting of theclamping couple, whereby the nuts may be projected through the apertureand then be hind the rear surface of the supporting plate,

' the nozzle may be oriented, and the parts may ing an aperture therein,a nozzle member having a flange adapted to fit against the face of theplate bordering the aperture, the nozzle member having holes through theflange thereof, clamping couples each including a bolt passed rearwardlythrough one of the holes andanut threaded on the rear end thereof, eachcouple being tiltable in its hole to permit passing the nut through theaperture in the plate whereby the nut may be projected behind andengaged with therear face of the supporting plate and the parts may beclamped togethenby tightening of the clamping couple, and rearwardlyprojectin lugs carried by the nozzle, one adjacent eac hole andpositioned and formed to arrest rotation of the associated nut with adiagonal of the nut projecting substantially radially of the nozzle.

5. In combination, a supporting plate having an aperture therein, anozzle member having a flan e adapted to fit against the face of theplate ordering the aperture, the nozzle member having holes through "theflange thereof, clamping couples each including a bolt shank passedthrough one of the holes and clamping members consisting of a bolt headand a nut threaded on the bolt shank, each couple being tiltable in itshole to permit passing the clamping member of the couple situated to therear of the nozzle through the aperture in the plate, whereby suchclamping member may be projected behind and engaged with the rear faceof the supporting late and the parts may be clamped together ytightening of the clamping couple, and rearwardly projecting lugscarried by the nozzle, one adjacent each hole and positioned and formedto arrest rotation of the associated clamping member with a substantialportion thereof engaging the rear surface of the plate.

6. In combination a nozzle chest havin a plane wall plate provided witha circu ar openin a nozzle having an annular portion seated 1n sealingengagement with the plate and having a jet portion projecting obliquelyfrom the plate when the nozzle is so seated, and means carried by saidannular portion and arranged to be'passed through the opening and intoengagement with the rear marginal face of the plate bounding the openingand manipulatable from the front of the plate to clamp the nozzleagainst the plate in any desired position of angular ad ustment of thenozzle. I

7. In combination, a nozzle chest having a wall provided with asubstantiallycircular opening, a nozzle having an annularportion bearingcontinuously against the wall and rotatable about the center of theopening while maintaining continuous bearing relationship with the walland having a ct por- 5 tion projecting obli uely away from t e wall, andmeans carried y said annular portion arranged to be passed through theopening and into engagement with the rear marginal face of the wallbounding the opening and 40 manipulatable from the front of the wall toclamp the nozzle against the wall in any desired position of angularadjustment of the nozzle.

In testimony whereof I have aflixed my signature to this specification.4 ERIGH R. ZADEMACH.

